CHECK OUT THE WIKI The purpose of the wiki is mainly to allow you to find information on instruments, either from either
- The model number
- The function(s) listed below. Some instruments have multiple functions - for example, the 4195A is a VNA, spectrum analyzer and an impedance analyzer. Therefore the 4195A is listed in multiple categories
Please also check out HPWiki available here:
- Accessory kits - various types
- AC power analyzers - PA2201A and PA2203A
- AC power supplies 6811C, 6812C, 6813C
- Airlines
- Arbitrary waveform generators M8194A
- Amplifiers?493A, 495A?
- Attenuators (optical) 8156A, 8157A, 8158B, 81566A, 81576A,?
- Attenuators (RF) 8494A
- Attenuator set (500 ¦¸) 350C
- Attenuator set (600 ¦¸) 350D
- Attenuator switch driver
- Audio analyzers? 8903A, 8903B, 8903E,? ?
- Base station test sets
- Bit error rate testers (BERTs)
- Cables
- Capacitance meters U1701A, U1701B, 4272A, 4278A, 4279A
- Capacitor Bridge 4270A,
- Capacitor standards 16380A, 16380C,?
- Carrier noise test setsi
- Cesium frequency standards
- Clamp ammeters
- Close field probes
- Crystal Impedance E4915A, E4916A
- Data Acquisition Systems (DAQs)
- DC power analyzers
- DC power supplies 6030A , 6031A , 6032A, 6033A, 6035A, 6131C, 6621A, 6622A, 6623A, 6624A, 6627A, 6255A, 6645A, 6671A, 6672A, 6673A, 6674A, 6675A, 62003A, 62003C, 62003E, 62004A, 62004B, 62004E, 62005A, 62005B, 62005E, 62006A, 62006B, 62006E, 62010A, 62010C, 62010E, 62012A, 62012C, 62012E, 62015A, 62015C, 62015E, 62018A, 62018C, 62018E, 62024A, 62024C, 62024E, 62028A, 62028C, 62028E, 62048A, 62048C, 62048E
- Delay lines
- Detectors
- Device current waveform analyzers
- Digital communications analyzers
- Directional couplers
- Distortion analyzers 330B, 330C, 330D, 331A, 332A, 333A, 334A, 339A, 8903A, 8903B, 8903E,???
- Dynamic measurement DC source
- Electrometers
- Fading simulators
- Femto ammeters
- Filters
- Frequency counters 522B, 5342A 5343A 5352B
- Frequency standards?
- Function Generators ? 3310A,? 8165A,
- GPIB controllers, extenders, cables etc.
- GPS frequency standards
- Harmonic mixers
- High resistance meters 4339B
- High resistance meter fixtures 16008B
- HEV EV Grid Emulators and Test Systems
- In-circuit test systems
- Impedance analyzers 4195A, 4291A, 4291B, 4395A, 4396A, 4396B, 4294A, E4990A, E4991A
- Impedance Analyzer Accessories
- Impedance / Gain Phase analyzer 4194A
- Impedance Meter 4193A,
- Isolators
- LCR meters? U1701A, U1701B, U1731A,? U1731B, U1731C, U1732A, U1732B, U1732C, U1733C, 4191A , 4192A, 4194A, 4195A, E4196A,? 4216A, 4260A, 4261A, 4262A? 4263A, 4263B, 4271B, 4274A, 4275A, 4276A , 4277A, 4284A, 4285A, 4286A, 4287A, 4291A, 4291B, 4294A, 4332A, 4342A, 4395A, 4396A, 4396B, E4980A and E4980AL
- LCR meter calibration devices? 16380A 42030A? 42090A, 42091A and 42100A
- LCR meter accessories
- 2-Terminal BNCs.
- 4-Terminal Pair (BNC connectors)
- Cable extension 16048A, 16048D, 16048E, 16048G, 16048H
- DC current bias accessories 42841A, 42842A, 42842B, 42842C, 42843A
- DC voltage bias accessories 16065A, 16065C,
- Kelvin clips 16089A, 16089B, 16089C,16089E
- Lead Components 16047A,16047B, 16047D, 16047E
- Material 16451B, 16452A
- Probes 42941A
- SMD 16034E, 16034G, 16034H
- 2-port 16096A
- 7 mm (APC7)
- 2-Terminal BNCs.
- LCZ meters? 4276A, 4277A,
- Lightwave clock / data receivers
- Lightwave converter
- Lightwave component analyzer
- Lightwave measurement system mainframes
- Lightwave polarization analyzers 8509B
- Logic analyzers
- Nemo wireless network solutions.
- Noise and interference test set
- Noise figure analyzers
- Noise sources 346A, 346B. 346C ,
- Matching pads (50 ohm to 75 ohm or similar)
- Materials test equipment
- Microwave repeaters
- Microwave downconverters 70427A
- Microwave / THz sources
- Milliammeter 428B
- Milliohm meter
- Mobile communications DC source
- Modular instruments
- AXIe
- Data acquisition (DAQ)
- USB
- PXIe
- Modulation analyzers
- Multimeters 427A, 970A
- Optical attenuators
- Optical heads
- Optical sources
- Optical spectrum analyzers
- Oscilloscopes 120A, 120AR, 120B, 122A, 130A, 130B, 130BR, 130C, 140A, 140B, 141A, 150A, 150AR, 160B, 180A, 180AR, 180CD, 181A, 181AR, 181T, 181TR, 182C, 182T, 183A, 183B, 184A, 184B, 185A, 185B, 1200A, 1200B, 1220A, 1221A, 1703A, 1707A, 1707B, 1710A, 1710B, 1715A, 1722A, 1725A, 1726A, 1740A, 1741A, 1742A, 1743A, 1744A, 1746A, 1980A, 1980B, 5403A, 6000A, 6000L, 16533A, 16534A, 54100A, 5410B, 54100C, 5100D, 54111D, 54120A, 54120B, 54200A, 54501A, 54502A, 54503A, 54504A, 54520A, 54520C, 54540A, 54540C, 54542A, 54542C, 54600B, 54601A, 54601B, 54602B, 54603B,? 54645A, 54654N, 54710A, 54720A, 54750A, 54825N, E1428,?
- Oven controlled crystal oscillators (OCXOs)
- Pattern generators
- PCM terminal test set
- Phase noise measurement
- Pico ammeters
- Printers 2225
- Plotters 7470A, 7475A?
- Probes
- Protocol analyzers and exercisers.
- Power booster test sets
- Power meters 431A, 431B, 431C, 432A, 435A, 435B, 437B, 438A
- Power splitters
- Power supplies
- Pulse generators
- Q-meters 4342A?
- Q-meter calibration inductors 16470A
- Reflection transmission test set
- Return loss module (optical)
- Relays / switches / switch matrices (optical)
- Relays / switches / switch matrices (RF)
- Resistor standards 42030A?and 42100A
- S-parameter test sets
- Scalar network analyzers
- SCSI bus preprocessor interface E2324A
- Selective level meters 3746A
- Semiconductors
- Semiconductor parameter analyzers 4145A, 4155B, 4156B,
- Signal analyzers
- Signal generators / sweep generators / signal sources / oscillators 200CD, 201B, 209A, 204D,? 608A,? 8165A
- Software
- Source measure units
- Spectrum analyzers 4195A,???
- Switch control units
- SWR meter 415E?
- Time interval? counters
- Time mark generator 226A
- Timing and data state modules
- Torque wrenches
- Transmitter testers
- Trigger modules
- Ultrasound transducers
- Universal bridge? 4260A, 4265A, 4265B?
- Vacuum tube voltmeter 410C
- Vector Impedance Meter 4193A, 4800A, 4815A
- Vector Network Analyzers (VNAs) 4195A,? 8510A, 8510B, 8510C, 8753A, 8753B, 8753C, 8753D, 8753E, 8753ES, 8752ET, 8719A, 8719B, 8719C, 8719D, 8720A, 8720B, 8720C, 8720D, 8720ES, 8722A, 8722B, 8722C, 8722D, 8722ES,
- Vector Network Analyzers (VNA) calibration kits 85032B, 85032E, 85033C, 85033D, 85033E, 85050B, 85050C, 85050D, 85052B, 85052C, 85052D, 85054A, 85054B, 85054D, 85056A
- Vector Network Analyzer (VNA) verification kits
- Vector Signal Analyzer 89650S, 89600S
- Vector voltmeters 8405A, 8508A,
- VXI mainframes 70000B, 70000C
- Waveform and function generators
- Waveguide to waveguide and waveguide to coaxial transitions.
- Wireless 58 OTA chambers
- Wireless channel emulators
- Wireless network emulators
- Wireless communication test sets
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141T reference replacement
Yes you can replace the ZZ1000 [equivalent] neon reference tube in the 141T power supply with a zener. Although this solves the fuse blowing problem, the temperature coeficient of voltage of the power
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donald collie
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#84208
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Re: Wanted: HP Laserjet 4
[hp_agilent_equipment] wrote: The engines typically provide video and control interfaces...HP writes *all* of the firmware and designs the control board. This has been the case since the very first
By
Dave McGuire
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#84207
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Re: Replace Neon NE-2 with Zener in 141T PSU?
I have not compared this supply but remember it was discussed some earlier time in the past few years. Old one - "neon tube" stabilized (pdf-page 35): 141T Display.pdf New one - zenerdiode stabilized
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czelusniakd
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#84206
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Re: Wanted: HP Laserjet 4
I think these printers are all good because they use Cannon print engines (aka, 90% of the printer) - hp basically put plastic cases on them, and maybe wrote some of the firmware (but maybe not). The
By
Andrew Hakman
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#84205
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Re: Replace Neon NE-2 with Zener in 141T PSU?
Hello Gang, First of all, I am not sponsored. But for such small orders, one or two parts and shit, use Arrow. Free shipping on literally everything.even to Slovakia. Just beware of customs... Tam --
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Tam Hanna
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#84203
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Re: Replace Neon NE-2 with Zener in 141T PSU?
Here's an example: http://tubedata.jp/sheets/200/z/ZZ1000.pdf http://tubedata.jp/sheets/200/z/ZZ1000.pdf If you make a replacement circuit that provides the same or close enough shunt regulator specs,
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Ed Breya
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#84202
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Re: Wanted: HP Laserjet 4
I'd get a 4050 or 4100. These printers are REAL workhorses, has parallel port, network port, lots of memory, duplex option, cartridge for 15000 prints, can use 2/3 paper drawers and the whole works. I
By
Alexandre Souza
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#84201
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Re: Wanted: HP Laserjet 4
I LOLed :D
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Alexandre Souza
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#84204
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Re: Wanted: HP Laserjet 4
[hp_agilent_equipment] wrote: Yes. I love my big non-cheap-consumer-crap printers. We put them through far less abuse here than most big companies (but far more than most individuals) and they don't
By
Dave McGuire
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#84200
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Re: Replace Neon NE-2 with Zener in 141T PSU?
Hi Gary, Denis, Ed, and Alan, You are all correct, I read the value wrong. My printed schematic looks poor on paper! Ok, so an 82 volt zener (or equivalent) would do the trick. Yes, that "bulb" does
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Elliott Li
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#84199
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Re: Wanted: HP Laserjet 4
Dave, I'll keep your suggestions in mind. Some pieces of gear were made better and because of it, lasted longer. Looking for exactly what you're describing. Only reason I'm staying with the legacy
By
Norm n3ykf <normanlizeth@...>
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#84198
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Re: Replace Neon NE-2 with Zener in 141T PSU?
I have two 141¡¯s. One with the infamous VR tube, which consistently blows fuses on the IF¡¯s, and one with a more recent power supply. I¡¯ve not used the older unit in years, but I have purchased
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Gary Appel
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#84197
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Re: Replace Neon NE-2 with Zener in 141T PSU?
Are you sure it's a 62V zener that's needed? My HP141T neon was 82V. ?I ?have recently replaced the Neon in mine with two series connected 1W Zeners of 39V and 43V. ?It drifts slightly for about 20
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[email protected]
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#84196
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Re: Replace Neon NE-2 with Zener in 141T PSU?
If the part you're looking at is the voltage reference for the power supply, I believe you have some things to figure out. As I recall, the proper reference voltage is around 83-85V, produced by a
By
Ed Breya
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#84195
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Re: Wanted: HP Laserjet 4
[hp_agilent_equipment] wrote: Their non-consumer printers are still top notch, but if you're not prepared to drop $4,000 on one, forget it. Personally, I use HP's older enterprise-grade printers, like
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Dave McGuire
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#84194
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Re: Replace Neon NE-2 with Zener in 141T PSU?
I have that circuit out in front of me trouble shooting that 100v supply on anothe system. My thought is that a 62v "zener" is not close enough to the 82v neon. You need another 20v "zener" in series
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Alan Melia
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#84193
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Re: Wanted: HP Laserjet 4
Rebuild kits are el-cheapo for the LJ-4. Fixes error 13. Toner (OEM) can be had on Craigslist. Offices cleaning out the closet. Bought a closet full. (like 10 OEM toner cartridges). Have two rebuild
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Norm n3ykf <normanlizeth@...>
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#84192
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Re: Wanted: HP Laserjet 4
I am quite satisfied with my printer but don't have a cheap source of? toner.? Further, HP has a reputation of paper feed problems due to broken plastic gears.? Yes duplex is an add on but it's a
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Bob Albert <bob91343@...>
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#84191
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Re: Wanted: HP Laserjet 4
Bob, The duplexer is a mechanical add-on. It won't natively do duplex. These things are great. Easy to work on. Awesome for printing manual pages when doing a project. Hit control+P and give it 100
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Norm n3ykf <normanlizeth@...>
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#84190
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Re: Wanted: HP Laserjet 4
I have one of these.? It was used by someone who couldn't figure out how to make it do duplex; that's why I got it very cheaply.
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Bob Albert <bob91343@...>
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#84189
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